n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 21 |
4 | 86 |
5 | 351 |
6 | 1432 |
7 | 5842 |
8 | 23833 |
9 | 97229 |
10 | 396655 |
11 | 1618192 |
12 | 6601569 |
13 | 26931732 |
14 | 109870576 |
15 | 448227521 |
16 | 1828587033 |
17 | 7459895657 |
18 | 30433357674 |
19 | 124155792775 |
20 | 506505428836 |
21 | 2066337330754 |
22 | 8429820731201 |
[0,1,5,21,86,351,1432,5842,23833,97229,396655, 1618192,6601569,26931732,109870576,448227521, 1828587033,7459895657,30433357674,124155792775, 506505428836,2066337330754,8429820731201] |